It is either a hardware problem or a firmware upgrade is necessary. Initially when dialing out to a number that requires a telephone keypad response to a recorded voice, the Obi100 work fine. After a couple of weeks of the Obi100 pluged in, I had to hold down the keypad for several seconds for a response on the other end. -- I disconnected the power to the obi100 and pluged it back in. Now it works fine again.
Does anyone else have the same problem??